Which of the following will increase the heat produced by a heating element?
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A.
Using a material with high conductivity
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B.
Decreasing the applied voltage
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C.
Increasing the current flowing through the wire
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D.
Using a wire of lower resistance
Correct Answer:
C. Increasing the current flowing through the wire
Explanation:
The amount of heat generated by a heating element is determined by Joule's Law of Heating, expressed by the formula H = I²Rt. This equation shows that heat production is directly proportional to the square of the electric current (I). Therefore, raising the current flowing through the wire will significantly increase the thermal energy produced. While other factors like resistance and time also play a role, among the given choices, increasing the current is the most effective way to boost heat output.
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